公开(公告)号：US20210292586A1

公开(公告)日：2021-09-23

申请号：US17266229

申请日：2019-07-26

Applicant: KAO CORPORATION

Inventor： Tomohiko NAGANO ,  Teruyuki FUKUDA ,  Takahiro MAEDA

IPC: C09D11/40 ,  C09D11/38 ,  C09D11/322 ,  C09D11/033 ,  C09D11/037 ,  C09D11/107 ,  B41M5/00

Abstract: The present invention relates to [1] a water-based ink for ink-jet printing, containing a carbodiimide compound, a pigment, a vinyl polymer and water, in which the vinyl polymer is a carboxyl group-containing polymer having an acid value of not more than 70 mgKOH/g, and the pigment is present in the form of pigment-containing polymer particles; [2] an ink set for ink-jet printing containing an aqueous composition containing the carbodiimide compound and water, and a water-based ink containing the aforementioned pigment and the aforementioned vinyl polymer; and [3] an ink-jet printing method including the step 1 of ejecting the carbodiimide compound, the pigment, the vinyl polymer and water onto a surface of a printing medium by an ink-jetting method to print characters or images thereon, and the step 2 of subjecting the resulting printed characters or images to heat treatment at a temperature of 50 to 200° C. According to the aqueous composition of the present invention, it is possible to obtain a printed material that is excellent in rub fatness.

公开(公告)号：US20210238437A1

公开(公告)日：2021-08-05

申请号：US17049140

申请日：2019-04-23

Applicant: KAO CORPORATION

Inventor： Takahiro MAEDA ,  Teruyuki FUKUDA ,  Tomohiko NAGANO

IPC: C09D11/54 ,  C09D11/322 ,  C09D11/102 ,  B41M5/00

Abstract: The present invention relates to [1] an aqueous composition for ink-jet printing, containing a blocked isocyanate A, at least one compound B selected from the group consisting of a carbodiimide compound and an oxazoline compound, and water; [2] a coating liquid for ink-jet printing, containing the aqueous composition described in the above [1]; [3] an ink set for ink-jet printing, containing the aqueous composition described in the above [1], and a water-based ink containing a pigment, in which at least one of the aqueous composition and the water-based ink contains a resin containing a reactive group that is capable of undergoing a crosslinking reaction at least with the compound B; and [4] an ink-jet printing method using the aqueous composition described in the above [1], and a water-based ink containing a pigment, in which at least one of the aqueous composition and the water-based ink contains the resin containing a reactive group that is capable of undergoing a crosslinking reaction at least with the compound B, said ink-jet printing method including the steps 1 and 2.

公开(公告)号：US20210317325A1

公开(公告)日：2021-10-14

申请号：US17266389

申请日：2019-07-26

Applicant: KAO CORPORATION

Inventor： Tomohiko NAGANO ,  Teruyuki FUKUDA ,  Takahiro MAEDA

IPC: C09D11/328 ,  C09D11/54 ,  C09D11/104 ,  B41M5/00

Abstract: The present invention relates to [1] an aqueous composition for ink-jet printing, containing a carbodiimide compound, a polyester resin and water; [2] a ink set for ink-jet printing containing an aqueous composition a containing a carbodiimide compound and water, and an aqueous composition b containing a polyester resin; [3] an ink set for ink-jet printing, containing the aforementioned aqueous composition for ink-jet printing and a water-based ink containing a colorant; and [4] an ink-jet printing method including the step 1 of ejecting a carbodiimide compound, a polyester resin, a colorant and water onto a surface of a printing medium by an ink-jetting method to print characters or images thereon; and the step 2 of subjecting the resulting printed characters or images to heat treatment at a temperature of 50 to 200° C. According to the aqueous composition of the present invention, it is possible to obtain a printed material that is excellent in rub fatness.

公开(公告)号：US20210309875A1

公开(公告)日：2021-10-07

申请号：US17266346

申请日：2019-07-26

Applicant: KAO CORPORATION

Inventor： Tomohiko NAGANO ,  Teruyuki FUKUDA ,  Takahiro MAEDA

IPC: C09D11/322

Abstract: The present invention relates to [1] an aqueous composition for ink-jet printing containing a carbodiimide compound, a vinyl polymer and water, in which the vinyl polymer is dispersed in the aqueous composition in the form of polymer particles formed by partially neutralizing carboxy groups of the vinyl polymer with a basic compound having a boiling point of not higher than 130° C.; [2] an ink set for ink-jet printing containing an aqueous composition a containing a carbodiimide compound and water, and an aqueous composition b containing a vinyl polymer; and [3] an ink-jet printing method including the step 1 of ejecting a carbodiimide compound, a pigment, a vinyl polymer and water by an ink-jetting method to print characters or images, and the step 2 of subjecting the resulting printed characters or images to heat treatment at a temperature of 50 to 200° C. According to the aqueous composition of the present invention, it is possible to obtain a printed material that is excellent in rub fatness.

公开(公告)号：US20210115359A1

公开(公告)日：2021-04-22

申请号：US16981850

申请日：2019-03-13

Applicant: KAO CORPORATION

Inventor： Tomohiko NAGANO ,  Teruyuki FUKUDA ,  Takahiro MAEDA

IPC: C11D3/30 ,  C11D3/43 ,  C11D11/00

Abstract: The present invention relates to a cleaning agent composition having an excellent cleaning power against a hard surface to which a polymer is adhered even under a room temperature condition, and provides [1] a cleaning agent composition containing a water-soluble organic amine (a), an alkylamine oxide (b) represented by the following general formula (1), an organic solvent (c) having a Hansen solubility parameter (HSP value) of 15 to 19.5 as measured at 20° C., and water; and [2] a method of cleaning a heard surface, including the step of cleaning the hard surface using the aforementioned cleaning agent composition at a temperature of not lower than 45° C. and not higher than 85° C.; (R1)(R2)(R3)N→O   (1) wherein R1 and R2 are each independently an alkyl group or alkenyl group having 1 to 3 carbon atoms, and R3 is an alkyl group or alkenyl group having 8 to 16 carbon atoms.

公开(公告)号：US20190270898A1

公开(公告)日：2019-09-05

申请号：US16310702

申请日：2017-06-16

Applicant: KAO CORPORATION

Inventor： Takahiro MAEDA

IPC: C09D11/322 ,  C09C3/10 ,  B41J2/01 ,  C08G63/195 ,  C09D11/54

Abstract: The present invention relates to a water-based ink that contains pigment-containing polyester-based resin particles A, pigment-free polyester-based resin particles B, an organic solvent and water, in which a content of an organic solvent C having a boiling point of not higher than 235° C. in a whole amount of the organic solvent is not less than 90% by mass. The water-based ink of the present invention can be improved in rub fastness, solvent resistance and adhesion to a non-water absorbing printing medium with good balance therebetween, even when printed on the non-water absorbing printing medium.

公开(公告)号：US20180142110A1

公开(公告)日：2018-05-24

申请号：US15570123

申请日：2016-04-22

Applicant: KAO CORPORATION

Inventor： Takahiro MAEDA

IPC: C09D11/322 ,  B41J2/01

CPC classification number: C09D11/322 ,  B41J2/01 ,  B41M5/00 ,  B41M5/0023 ,  B41M5/0047 ,  B41M5/0064 ,  C09D11/10 ,  C09D11/106 ,  C09D11/30

Abstract: The present invention relates to [1] a water-based ink including pigment-containing water-insoluble polymer particles A, water-insoluble vinyl-based polymer particles B and an organic solvent C, in which the water-insoluble polymer particles A are obtained by crosslinking polymer particles; the water-insoluble polymer particles B include at least one material selected from the group consisting of water-insoluble vinyl-based polymer particles and the like; the organic solvent C includes at least one compound selected from the group consisting of diethylene glycol monobutyl ether and diethylene glycol monoisobutyl ether, and propylene glycol, in which a total content of diethylene glycol monobutyl ether and diethylene glycol monoisobutyl ether in the water-based ink is not less than 0.8% by mass, and a content of an organic solvent having a boiling point of higher than 250° C. in the water-based ink is not more than 5% by mass; and a content of water in the water-based ink is not less than 45% by mass, and [2] an ink-jet printing method including the step of printing characters or images on a recording medium using the aforementioned water-based ink. The water-based ink of the present invention is excellent in long-term storage stability as well as ejection stability upon ink-jet printing, and can be improved in image quality of printed characters or images, rub fastness, water resistance, solvent resistance and adhesion to a substrate with a high level and a good balance when printed on a non-water absorbing recording medium.